Home / 31,107,487.70-42,921,462.66-18,047,182.88

Finding the Fourth Proportional to 31,107,487.70, 42,921,462.66 and 18,047,182.88

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Solution

The fourth proportional to 31,107,487.70, 42,921,462.66 and 18,047,182.88 is: 24,901,126.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107,487.70 : 42,921,462.66 = 18,047,182.88 : x
  2. Step 2: Convert to fraction form
    31,107,487.70/42,921,462.66 = 18,047,182.88/x
  3. Step 3: Cross multiply
    31,107,487.70x = 42,921,462.66 × 18,047,182.88
  4. Step 4: Simplify right side
    31,107,487.70x = 774,611,486,102,111.12
  5. Step 5: Solve for x
    x = 774,611,486,102,111.12/31,107,487.70
  6. Step 6: Final answer
    x = 24,901,126.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.